BMX Bikes Explained

Approximate Bike Sizes For Heights

Below we've covered approximate BMX wheel sizes and frame sizes for different heights of rider.

* Height - up to 3ft" | Bike Size - 12" Wheel or Balance Bike.

* Height - 3ft to 3ft 6" | Bike Size - 16" Wheel.

* Height - 3ft 4" to 4ft 4" | Bike Size - 18" Wheel.

* Height - 4ft to 5ft 4" | Bike Size - 20" Wheel with 18" to 20.25" top tube.

* Height - 5ft to 6ft | Bike Size - 20" Wheel with 20.25" to 21" top tube.

* Height - 5ft to 10ft + taller | Bike Size - 20" Wheel with 21" or longer top tube.


The differences in shorter and longer top tubes lengths on the 20ā€ bikes can also be rider preference based on the terrain you mostly ride. Below is a stereotype of the following riders.

Skatepark - Shorter frames for maneuvering bike. Longer frames if you tend to flow and go high.

Trails/ Dirt Jumps - Longer frames and Chainstay (CS) lengths for stability.

Street - Shorter frames and CS length for quick technical grinds and rotations.

Race - Longer frames and CS length for stability at high speeds.

The higher end complete bikes usually have better specs. For example a basic model may have unsealed bearings in the wheels and a standard hi-tensile steel frame whereas a higher end complete bike may have sealed wheels and a much stronger full 4130 chromoly heat-treated frame which is better for a heavier rider.

Race bikes however may have a aluminium frame on a basic model and a carbon fiber frame on a higher spec model.

YOU CAN BROWSE BMX BIKES BY SIZE BY SELECTING THE IMAGES BELOW.